Boost And Oil Pressure Gauges

[Ric 2001]

Could someone help me out.

I've managed to wire up my defi gauges, inside the car, but how do you get the wiring from the engine bay to the cockpit

Already do it with my power wire to the amp, but that goes down the passanger side of the car. But really could do with the wire coming in near the fuse box.

Was looking at where the bonnet release cable is, but there are 2 grommets to get through and looks a bit of a pain in the ass.

And where the hell is the oil pressure sensor?

Pics would help but if not no worries.

Thanks Ric.

 

[Ric 2001]

Does anyone know which wire is ground?

 

[Diablo559]

the negative side of the battery is the grounds which goes to the metal or body of the car as far as i know the grounds in that block of wires is the black and yellow wire beside the switched live but not sure as i see a black and white wire have you anything you can test it with